公开(公告)号：US4345173A

公开(公告)日：1982-08-17

申请号：US177327

申请日：1980-08-12

申请人： David D. Marchant ,  John M. Lytle

发明人： David D. Marchant ,  John M. Lytle

IPC分类号： H02K44/08 ,  H02N4/02

CPC分类号： H02K44/08

摘要： A system and method of generating electrical power wherein a mixture of carbonaceous material and water is heated to initiate and sustain the endothermic reaction of carbon and water thereby providing a gasified stream containing carbon monoxide, hydrogen and nitrogen and waste streams of hydrogen sulfide and ash. The gasified stream and an ionizing seed material and pressurized air from a preheater go to a burner for producing ionized combustion gases having a temperature of about 5000.degree. to about 6000.degree. F. which are accelerated to a velocity of about 1000 meters per second and passed through an MHD generator to generate DC power and thereafter through a diffuser to reduce the velocity. The gases from the diffuser go to an afterburner and from there in heat exchange relationship with the gasifier to provide heat to sustain the endothermic reaction of carbon and water and with the preheater to preheat the air prior to combustion with the gasified stream. Energy from the afterburner can also be used to energize other parts of the system.

摘要翻译： 一种产生电力的系统和方法，其中加热碳质材料和水的混合物以引发并维持碳和水的吸热反应，从而提供含有一氧化碳，氢和氮的气化流以及硫化氢和灰分的废物流。 气化物流和离子化种子材料和来自预热器的加压空气进入燃烧器，用于产生温度为约5000°至约6000°F的离子化燃烧气体，其加速至约1000米/秒的速度并通过 通过MHD发生器产生直流电力，此后通过扩散器降低速度。 来自扩散器的气体进入后燃器，并从那里与气化器的热交换关系，以提供热量以维持碳和水的吸热反应，并与预热器在气化燃烧之前预热空气。 来自加力器的能量也可以用于激励系统的其他部分。

公开(公告)号：US4292209A

公开(公告)日：1981-09-29

申请号：US035158

申请日：1979-05-02

申请人： David D. Marchant ,  Junior L. Bates

发明人： David D. Marchant ,  Junior L. Bates

IPC分类号： H02K44/10 ,  H01B1/06

CPC分类号： H02K44/10

摘要： A ceramic component which exhibits electrical conductivity down to near room temperatures has the formula:Hf.sub.x In.sub.y A.sub.z O.sub.2 where x=0.1 to 0.4, y=0.3 to 0.6, z=0.1 to 0.4and A is a lanthanide rare earth or yttrium. The component is suitable for use in the fabrication of MHD electrodes or as the current leadout portion of a composite electrode with other ceramic components.

摘要翻译： 在室温附近呈现导电性的陶瓷成分具有下式：Hf x In y Al 2 O 2，其中x = 0.1〜0.4，y = 0.3〜0.6，z = 0.1〜0.4，A为镧系稀土或钇。 该组件适用于制造MHD电极或用作具有其它陶瓷组件的复合电极的电流引出部分。

公开(公告)号：US5212125A

公开(公告)日：1993-05-18

申请号：US616153

申请日：1990-11-20

申请人： David D. Marchant ,  Joseph R. Fox ,  Timothy W. Brauneck

发明人： David D. Marchant ,  Joseph R. Fox ,  Timothy W. Brauneck

IPC分类号： C04B35/581

CPC分类号： C04B35/581

摘要： A process for producing a sintered AlN ceramic body by mixing an organic solution comprising a hydrocarbon solvent and an organometallic compound with AlN powder to produce a slurry, removing the solvent from the slurry to form a mixture of organometallic compound and AlN, forming the mixture into a shape, and heating the shape in a non-oxidizing atmosphere to sintering temperature to obtain densification.

摘要翻译： 通过将包含烃溶剂和有机金属化合物的有机溶液与AlN粉末混合以产生浆料来生产烧结AlN陶瓷体的方法，从浆料中除去溶剂以形成有机金属化合物和AlN的混合物，形成混合物 形状，将非氧化性气氛中的形状加热至烧结温度，得到致密化。

公开(公告)号：US4459341A

公开(公告)日：1984-07-10

申请号：US463204

申请日：1983-02-02

申请人： David D. Marchant ,  J. Lambert Bates

发明人： David D. Marchant ,  J. Lambert Bates

IPC分类号： H01M8/12

CPC分类号： H01M4/9025 ,  H01M8/1246 ,  Y02E60/525 ,  Y02P70/56

摘要： A solid oxide electrolyte fuel cell is described having a central electrolyte comprised of a HfO.sub.2 or ZrO.sub.2 ceramic stabilized and rendered ionically conductive by the addition of Ca, Mg, Y, La, Nd, Sm, Gd, Dy Er, or Yb. The electrolyte is sandwiched between porous electrodes of a HfO.sub.2 or ZrO.sub.2 ceramic stabilized by the addition of a rare earth and rendered electronically conductive by the addition of In.sub.2 O.sub.3. Alternatively, the anode electrode may be made of a metal such as Co, Ni, Ir Pt, or Pd.

摘要翻译： 描述了一种固体氧化物电解质燃料电池，其具有由通过添加Ca，Mg，Y，La，Nd，Sm，Gd，Dy Er或Yb而稳定并呈离子导电的HfO 2或ZrO 2陶瓷的中心电解质。 电解质夹在通过添加稀土而稳定的HfO 2或ZrO 2陶瓷的多孔电极之间，并通过添加In 2 O 3而导电。 或者，阳极可以由诸如Co，Ni，Ir Pt或Pd的金属制成。

公开(公告)号：US4180484A

公开(公告)日：1979-12-25

申请号：US915419

申请日：1978-06-14

申请人： David D. Marchant

发明人： David D. Marchant

IPC分类号： C04B35/486 ,  H01B1/08 ,  H05B7/06

CPC分类号： H01B1/08 ,  C04B35/486 ,  H05B7/06

摘要： A ceramic component suitable for preparing MHD generator electrodes consists of HfO.sub.2 and sufficient Tb.sub.4 O.sub.7 to stabilize at least 60 volume percent of the HfO.sub.2 into the cubic structure. The ceramic component may also contain a small amount of PrO.sub.2, Yb.sub.2 O.sub.3 or a mixture of both to improve stability and electronic conductivity of the electrode. The component is highly resistant to corrosion by molten potassium seed and molten coal slag in the MHD fluid and exhibits both ionic and electronic conductivity.

摘要翻译： 适用于制备MHD发生器电极的陶瓷部件由HfO 2和足够的Tb 4 O 7组成，以将至少60体积％的HfO 2稳定在立方结构中。 陶瓷成分也可以含有少量PrO 2，Yb 2 O 3或两者的混合物，以提高电极的稳定性和电子导电性。 该组分高度抵抗MHD流体中熔融钾晶种和熔融煤渣的腐蚀，并且具有离子和电子传导性。

公开(公告)号：US4128776A

公开(公告)日：1978-12-05

申请号：US745942

申请日：1976-11-29

申请人： Carl W. Boquist ,  David D. Marchant

发明人： Carl W. Boquist ,  David D. Marchant

IPC分类号： H02K44/10 ,  H02N4/02

CPC分类号： H02K44/10

摘要： A ceramic-metal composite suitable for use in a high-temperature environment consists of a refractory ceramic matrix containing 10 to 50 volume percent of a continuous high-temperature metal reinforcement. In a specific application of the composite, as an electrode in a magnetohydrodynamic generator, the one surface of the electrode which contacts the MHD fluid may have a layer of varying thickness of nonreinforced refractory ceramic for electrode temperature control. The side walls of the electrode may be coated with a refractory ceramic insulator. Also described is an electrode-insulator system for a MHD channel.

摘要翻译： 适用于高温环境的陶瓷 - 金属复合材料由含有10至50％（体积）连续高温金属增强材料的耐火陶瓷基体组成。 在复合材料的具体应用中，作为磁流体动力发生器中的电极，接触MHD流体的电极的一个表面可以具有用于电极温度控制的非增强耐火陶瓷的变化厚度的层。 电极的侧壁可以涂覆有耐火陶瓷绝缘体。 还描述了用于MHD通道的电极 - 绝缘体系统。

公开(公告)号：US4229322A

公开(公告)日：1980-10-21

申请号：US961152

申请日：1978-11-16

申请人： David D. Marchant ,  J. Lambert Bates

发明人： David D. Marchant ,  J. Lambert Bates

IPC分类号： C04B35/42 ,  H02K44/10 ,  F01B1/06

CPC分类号： H02K44/10 ,  C04B35/42

摘要： A ceramic component suitable for preparing MHD generator electrodes having the compositional formula: Y.sub.x (Mg.sub.y Cr.sub.z).sub.w Al.sub.(1-w) O.sub.3 where x=0.9 to 1.05, y=0.02 to 0.2, z=0.8 to 1.05 and w=1.0 to 0.5. The component is resistant to the formation of hydration products in an MHD environment, has good electrical conductivity and exhibits a lower electrochemical corrosion rate than do comparable compositions of lanthanum chromite.

摘要翻译： 适用于制备具有组成式：Yx（MgyCrz）wAl（1-w）O3的MHD发生器电极的陶瓷组分，其中x = 0.9至1.05，y = 0.02至0.2，z = 0.8至1.05，w = 1.0至0.5。 该组分对MHD环境中的水合产物的形成具有抗性，具有良好的导电性，并且比铬酸镧的可比组合物具有更低的电化学腐蚀速率。

公开(公告)号：US4140931A

公开(公告)日：1979-02-20

申请号：US822971

申请日：1977-08-08

申请人： David D. Marchant ,  Don H. Killpatrick ,  Harold Herman ,  Kenneth D. Kuczen

发明人： David D. Marchant ,  Don H. Killpatrick ,  Harold Herman ,  Kenneth D. Kuczen

IPC分类号： H02K44/10 ,  H02N4/02

CPC分类号： H02K44/10

摘要： An improved electrode for use as a current collector in the channel of a magnetohydrodynamid (MHD) generator utilizes an elongated monolithic cap of dense refractory material compliantly mounted to the MHD channel frame for collecting the current. The cap has a central longitudinal channel which contains a first layer of porous refractory ceramic as a high-temperature current leadout from the cap and a second layer of resilient wire mesh in contact with the first layer as a low-temperature current leadout between the first layer and the frame. Also described is a monolithic ceramic insulator compliantly mounted to the frame parallel to the electrode by a plurality of flexible metal strips.

摘要翻译： 在磁流体动力学（MHD）发生器的通道中用作集电器的改进的电极利用兼容地安装到MHD通道框架上的收集电流的致密耐火材料的细长单片盖。 盖具有中心纵向通道，其包含第一层多孔耐火陶瓷作为来自盖的高温电流引出，以及与第一层接触的第二层弹性丝网，作为第一层之间的低温电流引出 层和框架。 还描述了通过多个柔性金属条，它们通过柔性地安装到平行于电极的框架上的单片陶瓷绝缘体。

公开(公告)号：US4093879A

公开(公告)日：1978-06-06

申请号：US773360

申请日：1977-03-01

申请人： David D. Marchant ,  Don H. Killpatrick

发明人： David D. Marchant ,  Don H. Killpatrick

IPC分类号： B22F7/00 ,  H02K44/10 ,  H02N4/02

CPC分类号： B22F7/002 ,  H02K44/10

摘要： An electrode capable of withstanding high temperatures and suitable for use as a current collector in the channel of a magnetohydrodynamic (MHD) generator consists of a sintered powdered metal base portion, the upper surface of the base being coated with a first layer of nickel aluminide, an intermediate layer of a mixture of nickel aluminide - refractory ceramic on the first layer and a third or outer layer of a refractory ceramic material on the intermediate layer. The sintered powdered metal base resists spalling by the ceramic coatings and permits greater electrode compliance to thermal shock. The density of the powdered metal base can be varied to allow optimization of the thermal conductivity of the electrode and prevent excess heat loss from the channel.

摘要翻译： 能够耐受高温并适合用作磁流体动力学（MHD）发生器的通道中的集电器的电极由烧结的粉末金属基部分组成，基体的上表面涂覆有第一层镍铝化物， 第一层上的镍铝 - 耐火陶瓷的混合物的中间层和中间层上的难熔陶瓷材料的第三或外层。 烧结的粉末状金属基体可以抵抗陶瓷涂层的剥落，并允许更大的电极符合热冲击。 可以改变粉末状金属基底的密度，以便优化电极的导热性，并防止通道发生多余的热损失。